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<td class="pageTitle" nowrap="true">Concept: 逻辑视图</td><td width="100%">
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<td valign="top">称为逻辑视图的架构视图为理解系统设计的结构和组织提供了基础。</td>
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<a href="./../../../rup/domains/analysis_and_design_BD3BBB1D.html" guid="_kjFBYN7HEdm8G6yT7-Wdqw">分析与设计</a>
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<a href="./../../../rup/workproducts/rup_software_architecture_document_C367485C.html" guid="{6F49641A-ED10-47B5-9E5D-3F90A6BF3006}">软件架构文档</a>
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<div class="sectionHeading">Main Description</div>
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    为理解系统设计的结构和组织提供基础，在分析和设计工作流程中将使用称为<b>逻辑视图</b>的架构视图。只有一个系统逻辑视图，该视图说明了关键用例实现、子系统、包含在架构方面重要的行为的包和类。在每次迭代期间优化逻辑视图。
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    逻辑视图显示设计模型的在架构方面重要的子集，即类、子系统和包以及用例实现的子集。
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    还有其他四个视图：<b>用例视图</b>（在需求工作流程中处理）、<b>进程视图</b>、<b>部署视图</b>和<b>实现视图</b>，后面三个视图在分析与设计工作流程和实现工作流程中进行处理。
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    <b>软件架构文档</b>中记录了架构视图。可以添加不同的视图（例如安全视图）来说明软件架构的其他特定方面。
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    因此本质上，可以将架构视图看成所构建模型的抽象或简化，在该视图中通过将细节放在一边而使重要特征更加清晰。对于提高在系统开发过程中构建的任何模型的质量，架构是一种重要的方法。
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